tressler-



(No Model.)

J. L. TRESSLER 8: W. H. LOOMIS- FIRE BACK FOR MANTEL GRATES.

No. 247,438. Patented Sept. 20,1881.

Fi .2. 2 FIB-3- WITNESSES INVENTUR PETERS. Photo-Lithographer. Washington, 0.1:.

UNITED STATES PATENT OFFICE.

JOHN L. TBESSLER' AND WILLIAM H. LOOMIS, OF ALAMEDA, CALIFORNIA.

Fl RE-BACK FOR MANTEL-G RATES.

SPECIFICATION forming part of Letters Patent No. 247,438, dated September 20, 1881.

Application filed April 23, 1881. (No model.)

To all whom it mayconcern:

Be it known that we, JOHN LEVI TRESSLER and WILLIAM H. .LOOMIS, of the town and county of Alameda, and State of California, have invented a new and Improved Fire-Back and Ventilator l'or Mantel-Grates; and we hereby declare the following to be a full, clear, and exact description thereof, reference being made to the accompanying drawings.

Our invention consists of a peculiarly-constructed fire-back, which also serves as a ventilator and heat-radiator, and is intended as an improvementto and be used with Tressler and Loomis patent parlor mantel-grate, No. 221,756, dated November 18, 1879.

Figure 1 is a front elevation, showing a front view of the fire-back. Fig. 2 is a rear view, showingthe construction and general arrangements of the air-passages. Fig. 3 is a vertical section on line a I).

A is the grate-front, cast in the manner described in Letters Patent No. 221,756; B, the

fire-basket. O (J are openings through the closed portion of grate-front A, and cold-air pipes D D are connected with the openings 0 G in the grate-front A and fire-back E. The

fireback E. is made in a circular form, and

of smoke-flue G G, and enters the room at F F F. The fire-back E is made of cast-iron, reaching from under the top of the grate-frame to the floor. The openings 0 O, to accommodate cold-air pipes D D, are at a proper distance from the bottom to accommodate corresponding openings 0 O in the closed portion of grate-front A.

J J J J are partitions in fire-back E, causing the air to pass up and then down and then upward again before it enters the room, whereby it is well heated. The rear wall, K, surrounding air-space H, we contemplate making of sheet-iron or other suitable material. The cheeks or sides of the fire-place I I are made in the ordinary manner with soapstone or firebrick.

By the construction and use of a fire-back as herein contemplated and described we are enabled to produce a third more heat with the same amount of fuel.

Having thus fully describedour invention, What we claim as new, and desire to secure by Letters Patent, is-

The fire-backl' hin combination with air-pipes D D, rear wall, K, having smoke-openings G G, hot-air tubes F F F, and partition-walls J J J J, constructed and applied substantially as and for the purpose set forth.

JOHN L. TRESSLER.

Witnesses: \V. H. LOOMIS.

D. W. MARTIN, PETER P. WILLETT. 

